PHP Manual

Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

**Filter Configuration Options**
Name	Default	Changeable	Changelog
filter.default	"unsafe_raw"	PHP_INI_PERDIR	PHP_INI_ALL in filter <= 0.9.4. Available since PHP 5.2.0.
filter.default_flags	NULL	PHP_INI_PERDIR	PHP_INI_ALL in filter <= 0.9.4. Available since PHP 5.2.0.

For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.

Here's a short explanation of the configuration directives.

filter.default string

Filter all $_GET, $_POST, $_COOKIE, $_REQUEST and $_SERVER data by this filter. Original data can be accessed through filter_input().

Accepts the name of the filter you like to use by default. See the existing filter list for the list of the filter names.

filter.default_flags integer

Default flags